.articles {
  display: flex;
  padding: 2rem;
  flex-wrap: wrap;
  justify-content: space-around;
}

/* 文章盒子 */
.article-box {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 15rem;
  min-height: 10rem;
  margin-bottom: 2rem;
  /* border: 1px solid #18b1c5; */
  box-shadow: 0 0 1px 0 black;
}

/* 控制边距 */
.title, .article-att, .content{
  padding: 0.5rem 1rem 0;
}

/* .operate-btn-box {
  padding: 0.25rem 1rem;
} */

/* 标题 */
.article-box .title {
  padding: 0.5rem 1rem;
  font-family: sans-serif;
  margin: 0;
  color:white;
  background-color: #20617c;
}

/* 文章信息 */
.article-att {
  font-style: italic;
  font-size: 0.9rem;
  color: rgb(153, 148, 148);
}

.button {
  display: inline-block;
  border: none;
  color: white;
  padding: 0.375rem 0.5rem;
  background-color: #01a9c0;
  cursor: pointer;
}